75 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// <regex>10 11// template <class traits, class charT, class ST, class SA>12// basic_string<charT, ST, SA>13// regex_replace(const basic_string<charT, ST, SA>& s,14// const basic_regex<charT, traits>& e, const charT* fmt,15// regex_constants::match_flag_type flags =16// regex_constants::match_default);17 18#include <regex>19#include <cassert>20#include "test_macros.h"21 22int main(int, char**)23{24 {25 std::regex phone_numbers("\\d{3}-\\d{4}");26 std::string phone_book("555-1234, 555-2345, 555-3456");27 std::string r = std::regex_replace(phone_book, phone_numbers,28 "123-$&");29 assert(r == "123-555-1234, 123-555-2345, 123-555-3456");30 }31 {32 std::regex phone_numbers("\\d{3}-\\d{4}");33 std::string phone_book("555-1234, 555-2345, 555-3456");34 std::string r = std::regex_replace(phone_book, phone_numbers,35 "123-$&",36 std::regex_constants::format_sed);37 assert(r == "123-$555-1234, 123-$555-2345, 123-$555-3456");38 }39 {40 std::regex phone_numbers("\\d{3}-\\d{4}");41 std::string phone_book("555-1234, 555-2345, 555-3456");42 std::string r = std::regex_replace(phone_book, phone_numbers,43 "123-&",44 std::regex_constants::format_sed);45 assert(r == "123-555-1234, 123-555-2345, 123-555-3456");46 }47 {48 std::regex phone_numbers("\\d{3}-\\d{4}");49 std::string phone_book("555-1234, 555-2345, 555-3456");50 std::string r = std::regex_replace(phone_book, phone_numbers,51 "123-$&",52 std::regex_constants::format_no_copy);53 assert(r == "123-555-1234123-555-2345123-555-3456");54 }55 {56 std::regex phone_numbers("\\d{3}-\\d{4}");57 std::string phone_book("555-1234, 555-2345, 555-3456");58 std::string r = std::regex_replace(phone_book, phone_numbers,59 "123-$&",60 std::regex_constants::format_first_only);61 assert(r == "123-555-1234, 555-2345, 555-3456");62 }63 {64 std::regex phone_numbers("\\d{3}-\\d{4}");65 std::string phone_book("555-1234, 555-2345, 555-3456");66 std::string r = std::regex_replace(phone_book, phone_numbers,67 "123-$&",68 std::regex_constants::format_first_only |69 std::regex_constants::format_no_copy);70 assert(r == "123-555-1234");71 }72 73 return 0;74}75